LCM of 819, 221, 793, 657
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 819, 221, 793, 657 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 819, 221, 793, 657. So, keep reading to learn more.
Given numbers are 819,221,793,657
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 819,221,793,657 is 61999119.
Find LCM of 819,221,793,657 with Prime Factorization
| 3 | 819, 221, 793, 657 |
| 3 | 273, 221, 793, 219 |
| 13 | 91, 221, 793, 73 |
| 7, 17, 61, 73 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 13 x 7 x 17 x 61 x 73 = 61999119
Therefore, the lowest common multiple of 819,221,793,657 is 61999119.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
819 x 221 x 793 x 657 = 94300659999
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
819 : 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819
221 : 1, 13, 17, 221
793 : 1, 13, 61, 793
657 : 1, 3, 9, 73, 219, 657
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 819,221,793,657, is 1.
Now, the common factors can be found like this.
819:3x 3x 7x 13
221:13x 17
793:13x 61
657:3x 3x 73
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 13x 13 = 1521
Therefore, the value for common factors is 1521.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 94300659999/(1x1521)
LCM = 94300659999/1521
LCM = 61999119
Thus, we can understand that the LCM of 819,221,793,657 is 61999119.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 819, 221, 793, 657
1. What is the LCM of 819, 221, 793, 657?
Answer: LCM of 819, 221, 793, 657 is 61999119.
2. How to calculate the LCM of 819, 221, 793, 657?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 819, 221, 793, 657.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.